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The heel hold-down device, notably for safety ski bindings, comprises a fixed body, a tilting heel retaining member, a control lever, and an elastic mechanism incorporating an axial coil compression spring. The fixed body has two lateral vertical walls and is operatively connected to a movable U-sha

The heel hold-down device, notably for safety ski bindings, comprises a fixed body, a tilting heel retaining member, a control lever, and an elastic mechanism incorporating an axial coil compression spring. The fixed body has two lateral vertical walls and is operatively connected to a movable U-shaped piston of which the two flat side arms are adapted to slide parallel to the vertical walls of the body. The heel retaining member is pivoted to the side arms of the piston by means of a pair of trunnions engaging registering holes formed in the side walls of the heel retaining member and in the piston arms. The trunnions are also slidably engaged in longitudinal slots formed in the lateral walls of the fixed body.

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A heel hold-down device for a safety ski binding, which comprises a fixed body locked in a position adjustable along the longitudinal axis of the ski, said body of substantially parallelipipedic configuration having two lateral vertical walls and comprising an internal cavity open at one end and clo

A heel hold-down device for a safety ski binding, which comprises a fixed body locked in a position adjustable along the longitudinal axis of the ski, said body of substantially parallelipipedic configuration having two lateral vertical walls and comprising an internal cavity open at one end and closed at the other end in the axial direction of the ski, a heel retaining member fulcrumed on a transverse pivot pin carried by said fixed body, said heel retaining member end closing said body with a pair of wings parallel to said lateral vertical walls of said body, said heel retaining member being responsive to a spring-loaded elastic mechanism carried by said fixed body and housed in said internal cavity of said body, wherein the spring of said elastic mechanism is a coil compression spring reacting with one end against the closed end of said cavity and with the opposite end against a movable U-shaped piston of which the intermediate portion closes the open end of said cavity and the two lateral arms are flat and adapted to slide parallel to said lateral walls of said fixed body, the lateral walls of said heel retaining member being also parallel to the arms of said U-shaped pistion, said heel retaining member being pivotally mounted on said piston arms by means of a pair of axially aligned, opposite and registering trunnions screws extending through registering keyhole-shaped apertures formed in said wings of said heel retaining member and said lateral arms of said piston, said trunnions or screws being slidably engaged in longitudinal slots formed in the lateral surfaces of said fixed body.